Tuesday

April 21, 2015

April 21, 2015

Posted by **Anonymous** on Sunday, May 16, 2010 at 11:40am.

- trig -
**drwls**, Sunday, May 16, 2010 at 11:50amLet's work on the left side of that possible identity.

cosx + sinx*tanx = cosx + sin^2x /cosx

= cosx + (1 - cos^2x)/cosx

= cosx + 1/cosx - cosx = 1/cosx = secx

That agrees with the right side, so the identity is true.

trig 26 - simplify to a constant or trig func. 1. sec ²u-tan ²u/cos ²v+sin ²v ...

Integration - Intergrate ¡ì sec^3(x) dx could anybody please check this answer. ...

Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...

Trigonometry desperate help, clueless girl here - 2. solve cos 2x-3sin x cos 2x...

Trigonometry - 1.Solve tan^2x + tan x – 1 = 0 for the principal value(s) to two ...

trig - how do you start this equation i've been tryng it for 20min. sec^6x(...

precalculus - For each of the following determine whether or not it is an ...

Trigonometry - Verify/Solve the identities. 1.) SIN^1/2 X COS X-SIN^5/2 X COS X ...

trig - Third time is the charm? I'll try again. Could someone show me how, (- ...

trigonometry hlp me - 6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin y...